parquet::format

Struct RowGroup

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pub struct RowGroup {
    pub columns: Vec<ColumnChunk>,
    pub total_byte_size: i64,
    pub num_rows: i64,
    pub sorting_columns: Option<Vec<SortingColumn>>,
    pub file_offset: Option<i64>,
    pub total_compressed_size: Option<i64>,
    pub ordinal: Option<i16>,
}

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§columns: Vec<ColumnChunk>

Metadata for each column chunk in this row group. This list must have the same order as the SchemaElement list in FileMetaData.

§total_byte_size: i64

Total byte size of all the uncompressed column data in this row group *

§num_rows: i64

Number of rows in this row group *

§sorting_columns: Option<Vec<SortingColumn>>

If set, specifies a sort ordering of the rows in this RowGroup. The sorting columns can be a subset of all the columns.

§file_offset: Option<i64>

Byte offset from beginning of file to first page (data or dictionary) in this row group *

§total_compressed_size: Option<i64>

Total byte size of all compressed (and potentially encrypted) column data in this row group *

§ordinal: Option<i16>

Row group ordinal in the file *

Implementations§

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impl RowGroup

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pub fn new<F4, F5, F6, F7>( columns: Vec<ColumnChunk>, total_byte_size: i64, num_rows: i64, sorting_columns: F4, file_offset: F5, total_compressed_size: F6, ordinal: F7, ) -> RowGroup
where F4: Into<Option<Vec<SortingColumn>>>, F5: Into<Option<i64>>, F6: Into<Option<i64>>, F7: Into<Option<i16>>,

Trait Implementations§

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impl Clone for RowGroup

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fn clone(&self) -> RowGroup

Returns a copy of the value. Read more
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fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for RowGroup

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Hash for RowGroup

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)
where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for RowGroup

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fn cmp(&self, other: &RowGroup) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Self
where Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Self
where Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Self
where Self: Sized,

Restrict a value to a certain interval. Read more
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impl PartialEq for RowGroup

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fn eq(&self, other: &RowGroup) -> bool

Tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd for RowGroup

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fn partial_cmp(&self, other: &RowGroup) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl TSerializable for RowGroup

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fn read_from_in_protocol<T: TInputProtocol>(i_prot: &mut T) -> Result<RowGroup>

Reads the struct from the input Thrift protocol
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fn write_to_out_protocol<T: TOutputProtocol>( &self, o_prot: &mut T, ) -> Result<()>

Writes the struct to the output Thrift protocol
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impl Eq for RowGroup

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impl StructuralPartialEq for RowGroup

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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Immutably borrows from an owned value. Read more
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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dst: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dst. Read more
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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more
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where T: Clone,

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type Owned = T

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